4th Grade Organisms Word Scramble
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| Term | Definition |
| Organism | Any living thing |
| Invertebrates | Animals with no backbone |
| Vertebrates | Animals with backbones |
| Mammal | Has fur or hair, feeds its young milk, and has lungs |
| Bird | Has wings and feathers |
| Reptile | Has dry scales or plates, most lay eggs, and breathes with lungs |
| Amphibian | Has moist skin, gills or lungs, or can breathe through skin and goes through metamorphosis |
| Fish | Most have bones or cartilage skeletons, fins, and breathes with gills |
| Adaptation | A physical or behavioral trait that allows an organism to survive. |
| Life cycle | Stages of growth and development from birth to death |
| Animals | A group of organisms that cannot make their own food. |
| Senses | These give animals information about their surroundings. |
| Habitat | The place where an organism lives. |
| Smell | The sense used to detect odors. |
| Hearing | The sense that allows the animal to listen to things. |
| Sight | The sense that allows an animal to see its habitat. |
| Touch | The sense that allows an animal to feel things in its environment. |
| Taste | The sense that is detected by the tongue. |
| Inherited traits | Traits that are passed from parent to offspring (children) |
| Acquired traits | Traits that are learned over time. |
| Behavioral adaptation | Something an animal does to help it survive |
| Structural adaptation | Special body parts to help it survive |
| Migration | Moving to a different place to live or reproduce. |
| Camouflage | Blending into its surroundings |
| Mimicry | Looking like another animal |
| Instinct | A behavior that an animal automatically knows how to do; They do not need to be taught it. |
| Trait | A characteristic passed on from its parents |
| Sea jellies | Invertebrate with soft bodies and long, stinging tentacles |
| Worms | Invertebrates with long, tube-shaped soft bodies and no legs |
| Arthropods | Largest group of invertebrates that include insects, spiders and crabs. They have an outer shell for protection and their legs have joints. |
| Mollusks | Invertebrates with soft bodies and some have a shell. Examples are squids, octopuses, snails and clams. |
| Egg | A baby develops inside and hatches out. |
| Live birth | Babies are born instead of hatching out of eggs. |
| Metamorphosis | A change in form as they grow into an adult |
| Complete metamorphosis | Has 4 stages: egg, larva, pupa, then adult |
| Incomplete metamorphosis | Has 3 stages: egg, nymph, adult |
| Nymph | A smaller, younger version of the adult. It molts until it reaches adult size. |
| Molts | To shed its outer covering, or exoskeleton as it grows. |
| Structures | An arrangement of parts an organism has to help it survive |
| Flowering plants | Plants with seeds that grow flowers |
| Deciduous trees | Trees that lose their leaves in the fall and then grow new leaves in the spring. Nuts are the seeds of some trees. |
| Coniferous trees | Trees that grow cones instead of flowers that hold seeds. Leaves are called needles and they do not fall off in the autumn. |
| Spores | A small cell that grows into a new plant made by mosses, ferns and fungi. |
| Germination | When a seed splits open and sprouts. |
| Seedling | A young plant |
| Roots | Absorb water and nutrients from the soil |
| Leaves | Contains chlorophyll that works with the sun to make food for the plant. |
| Stem | Holds the plant up and gives it support. It contains tube-like structures to move water and nutrients to the leaves from the roots. |
| Spine | Another word for backbone |
| Habitat | The place where an organism lives. |
| Structural adaptation | Special body parts that help the organism survive. |
| Behavioral adaptation | Special behaviors that help an organism survive. |
Created by:
Leusbyb
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